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#1 2012-10-10 14:47:35

Registered: 2012-10-10
Posts: 1

Disable laptop monitor at startup (when external monitor is connected)

I'd like to disable my laptop monitor at startup (when an external monitor is connected), but make it available in X.

By default, my boot looks like :
* Grub2 displays only on my external monitor (at maximum resolution)
* Kernel displays only on my external monitor (maximum resolution)
* udev (I think) is started and turns on my laptop screen. Then I get the same display cloned on both my monitors, at laptop resolution (leaving me with a small resolution on my external monitor).

I can disable the laptop monitor by setting


in /etc/default/grub, which is perfect, except I cannot use my laptop screen in X anymore (it is shown as disconnected by xrandr). And I suspect I can't see anything if I disconnect my external monitor (which I do frequently).

I've seen other people with the same problem (especially … n-806714/), but no answer.

I'm using an early KMS start with the intel driver (i915), with Kernel 3.5.6-1-ARCH.

Is there a way to reclaim a monitor after boot ? Or is there another way to disable a monitor at startup ?

Last edited by ThomasQ (2012-10-10 15:08:20)


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